| Physics problem please help.... T.T?
You are to design a roller coaster in which cars start from rest at a height h=25.0m rolling down a valley, then up a mountain range. Assume there is no friction.
Hint: Use conservation of energy to solve for appropriate values.
a. What is the speed of the car at the bottom of the valley?
b. If the passengers are to feel 7.0g at the bottom of the valley, what must be the radius of the arc of the circle that fits the bottom of the valley.
c. The next top of the mountain is an arc of the circle of the same radius as the bottom of the valley. If the passengers are to feel 0g at the top of this mountain, what must be its height h?
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03-11-2008, 11:51 PM
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